Camshaft position sensor

Sounds to me more like an Idle Air Control problem, but a diagnosis will 100% have to be performed. We charge about 100$, the range is 75-150 for a BMW usually. MAKE SURE YOU GET A PRO!!!

sounds like a camshaft position sensor, the car cannot pick up the proper timing you can find it at your local auto parts store I think it was $140 and my car instantly ran correctly the cam positioning sensor even caused my cruise control not to work you can put it in yourself in 20min